Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Pergunta: Nomeie a matrícula máxima para a universidade de Niagara.
 ###Tabelas: CREATE TABLE goals_for_senior_national_team (goals_for_senior_national_team_id AUTO_INCREMENT PRIMARY KEY, Date VARCHAR, Venue VARCHAR, Score VARCHAR, Result VARCHAR, Competition VARCHAR) CREATE TABLE team_seedings (team_seedings_id AUTO_INCREMENT PRIMARY KEY, Rank INT, Team VARCHAR, Total Points INT, 2008-09 Points INT, 2007-08 Points INT, 2006-07 Points INT, 2005-06 Points INT) CREATE TABLE distribution (distribution_id AUTO_INCREMENT PRIMARY KEY, Macedonian population in Vojvodina VARCHAR, 1961 INT, Number 1971 INT, 1981 INT, 1991 INT, 2002 INT) CREATE TABLE returning (returning_id AUTO_INCREMENT PRIMARY KEY, Player VARCHAR, GP INT, K. Ret. INT, KR Yds INT, KR Avg. VARCHAR, KR TD INT, KR LG INT, P. Ret. INT, PR Yds INT, PR Avg. VARCHAR, PR TD INT, PR LG INT, MFG Ret. INT, MFG Yds INT, MFG Avg. VARCHAR, MFG LG INT, MFG TD INT) CREATE TABLE membership (membership_id AUTO_INCREMENT PRIMARY KEY, School VARCHAR, Location VARCHAR, Founded INT, Affiliation VARCHAR, Enrollment INT, Nickname VARCHAR, Primary conference VARCHAR)  
SELECT MAX Enrollment FROM membership WHERE School = Niagara University